SHORT COMMUNICATION
Effect of genetic line on energy and nitrogen metabolism during late gestation in twin-pregnant ewes fed restrictedly
A. Kiani 1  
,   A. Chwalibog 1,   M. O. Nielsen 1,   A. H. Tauson 1
 
More details
Hide details
1
Department of Animal and Veterinary Basic Sciences, The Royal Veterinary and Agricultural University, Gronnegaardsvej 7, DK-1870 Ferderiksberg C, Denmark
CORRESPONDING AUTHOR
A. Kiani   

Department of Animal and Veterinary Basic Sciences, The Royal Veterinary and Agricultural University, Gronnegaardsvej 7, DK-1870 Ferderiksberg C, Denmark
Publication date: 2004-08-30
 
J. Anim. Feed Sci. 2004;13(Suppl. 1):417–420
 
KEYWORDS
ABSTRACT
Nitrogen and energy metabolism were measured in balance and respiration experiments performed seven weeks before expected lambing in twenty twin-pregnant ewes from two genetic lines: high average daily gain (Gain) and slaughter quality (Lean). Ewes were grouped according to liveweight (LW): heavier (Heavy) and lighter (Light) than the average for the genetic line. All animals were fed restrictedly, about 70 % of their energy requirements. Selection for slaughter quality rather than high daily gain increased apparent crude protein digestibility (77.9 vs 81.1% for Gain and Lean, respectively, P<0.05), but neither genetic line nor LW affected other parameters of quantitative nitrogen and energy metabolism.
ISSN:1230-1388